Free Online Image Size Checker
Before uploading a photo to a website, attaching it to an email, or submitting it to a print service, it helps to know exactly how big it is - both in file size and in pixel dimensions. LovePDFImg's Image Size Checker reads this information directly from your image and displays its width and height in pixels, file size, aspect ratio, and megapixel count, all at a glance.
You can check a single image or drop in a whole batch to compare several files side by side. The tool reads the image dimensions by loading the file into the browser and inspecting its natural size, and reads the file size directly from the file object - no server upload required.
This is a fast way to confirm an image meets a specific platform's requirements - checking megapixel count for a print order, verifying file size stays under an email attachment limit, or comparing several photos before choosing which to use.
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Who Uses Image Size Checker?
Photographers: Verify megapixel count and dimensions before submitting to a print lab or stock platform.
Web developers: Check file sizes of image assets to ensure they meet performance budgets.
Businesses: Confirm a batch of photos meets a marketplace or form's size requirements before uploading.
Personal users: Check if a photo will fit under an email attachment size limit before sending.
Why Choose LovePDFImg's Image Size Checker?
Checking an image's properties often means right-clicking through a file manager or opening a full image editor. LovePDFImg's Image Size Checker shows everything at a glance directly in your browser, with support for checking several files at once. There's no account requirement and no daily usage limit.
Technical Explanation: Dimensions vs File Size
Pixel dimensions and file size are related but distinct properties - a high-resolution image doesn't always mean a large file, and vice versa, since compression settings and image complexity both affect file size independently of pixel count. Megapixel count is calculated by multiplying width by height and dividing by one million, giving a standard way to describe an image's total resolution regardless of its specific aspect ratio.